Vacuum deposited WO3/Al/Al:Ag anode for efficient red organic light-emitting diodes
學年 110
學期 2
出版（發表）日期 2022-02-17
作品名稱 Vacuum deposited WO3/Al/Al:Ag anode for efficient red organic light-emitting diodes
作品名稱（其他語言）
著者 Sutanto, K.; Amin, N. R. A.; Chen, C.-H.; Luo, D.; Biring, S.; Lee, C.-C.; Liu, S.-W.*
單位
出版者
著錄名稱、卷期、頁數 Organic Electronics 103, 106454
摘要 Vacuum deposited multilayered electrode with ultra-smooth surface morphology and suitable work function for efficient electron or hole injection at the interface between the organic and metal layers is attracting more attentions recently. Following the trend, a simplified structure of WO3/Al/Al:Ag anode with the sheet resistance of 1.93 Ω/sq, work function of ∼5.11 eV, and surface roughness of 0.72 nm was fabricated to develop a red organic light-emitting diode (OLED) with the external quantum efficiency (EQE) of ∼16.18% at 1000 cd m−2, which is much higher than that of an red OLED based on standard ITO electrode (EQE ∼ 12.32%). In addition, the red OLED with our proposed ITO-free anode exhibit a bright emission with luminance of >10,000 cd m−2 at 5 V as well as could be fabricated on a large active area of 4 cm2 without any breakdown issue. This is attributed to the ultra-smooth multilayer with a suitable workfunction reducing the contact barrier energy in the interface of organic and metal layer. Impedance spectroscopy, transient electroluminescence, and optical simulation were carried out to understand the device physics and carrier recombination behaviors.
關鍵字 Organic light emitting diode;Alloy electrode;Multilayered electrode;Phosphorescent;Exciplex co-host
語言 en
ISSN 1566-1199
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/123399 )